H01L21/82345

FIN CUT AND FIN TRIM ISOLATION FOR ADVANCED INTEGRATED CIRCUIT STRUCTURE FABRICATION

Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a fin. A first isolation structure separates a first end of a first portion of the fin from a first end of a second portion of the fin, the first end of the first portion of the fin having a depth. A gate structure is over the top of and laterally adjacent to the sidewalls of a region of the first portion of the fin. A second isolation structure is over a second end of a first portion of the fin, the second end of the first portion of the fin having a depth different than the depth of the first end of the first portion of the fin.

Device And Method For Tuning Threshold Voltage By Implementing Different Work Function Metals In Different Segments Of A Gate
20230231028 · 2023-07-20 ·

A semiconductor device includes an active region spanning along a first direction. The semiconductor device includes a first elongated gate spanning along a second direction substantially perpendicular to the first direction. The first elongated gate includes a first portion that is disposed over the active region and a second portion that is not disposed over the active region. The first portion and the second portion include different materials. The semiconductor device includes a second elongated gate spanning along the second direction and separated from the first elongated gate in the first direction. The second elongated gate includes a third portion that is disposed over the active region and a fourth portion that is not disposed over the active region. The third portion and the fourth portion include different materials.

Semiconductor devices having gate electrodes and methods of manufacturing the same

A semiconductor device includes a first fin that protrudes from a substrate and extends in a first direction, a second fin that protrudes from the substrate and extends in the first direction, the first fin and the second fin being spaced apart, a gate line including a dummy gate electrode and a gate electrode, the dummy gate electrode at least partially covering the first fin, the gate electrode at least partially covering the second fin, the dummy gate electrode including different materials from the gate electrode, the gate line covering the first fin and the second fin, the gate line extending in a second direction different from the first direction, and a gate dielectric layer between the gate electrode and the second fin.

SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME

A semiconductor device including a substrate, a first transistor and a second transistor is provided. The first transistor includes a first gate structure over the first semiconductor fin. The first gate structure includes a first high-k layer and a first work function layer sequentially disposed on the substrate, a material of the first work function layer may include metal carbide and aluminum, and a content of aluminum in the first work function layer is less than 10% atm. The second transistor includes a second gate structure. The second gate structure includes a second high-k layer and a second work function layer sequentially disposed on the substrate. A work function of the first work function layer is greater than a work function of the second work function layer.

CROSSING MULTI-STACK NANOSHEET STRUCTURE AND METHOD OF MANUFACTURING THE SAME

A semiconductor device includes a substrate; a 1.sup.st transistor formed above the substrate, and having a 1.sup.st transistor stack including a plurality of 1.sup.st channel structures, a 1.sup.st gate structure surrounding the 1.sup.st channel structures, and 1.sup.st and 2.sup.nd source/drain regions at both ends of the 1.sup.st transistor stack in a 1.sup.st channel length direction; and a 2.sup.nd transistor formed above the 1.sup.st transistor in a vertical direction, and having a 2.sup.nd transistor stack including a plurality of 2.sup.nd channel structures, a 2.sup.nd gate structure surrounding the 2.sup.nd channel structures, and 3.sup.rd and 4.sup.th source/drain regions at both ends of the 2.sup.nd transistor stack in a 2.sup.nd channel length direction, wherein the 3.sup.rd source/drain region does not vertically overlap the 1.sup.st source/drain region or the 2.sup.nd source/drain region, and the 4.sup.th source/drain region does not vertically overlap the 1.sup.st source/drain region or the 2.sup.nd source/drain region.

Semiconductor structure

A semiconductor structure is provided. The semiconductor structure includes nanostructures stacked over a substrate and spaced apart from one another, gate dielectric layers wrapping around the nanostructures respectively, nitride layers wrapping around the gate dielectric layers respectively, oxide layers wrapping around the nitride layers respectively, work function layers wrapping around the oxide layers respectively, and a metal fill layer continuously surrounding the work function layers.

FIELD EFFECT TRANSISTOR WITH GATE ISOLATION STRUCTURE AND METHOD

A device includes a substrate, a first semiconductor channel over the substrate, a second semiconductor channel over the substrate and laterally offset from the first semiconductor channel, and a third semiconductor channel over the substrate and laterally offset from the second semiconductor channel. A first gate structure, a second gate structure, and a third gate structure are over and lateral surround the first, second, and third semiconductor channels, respectively. A first inactive fin is between the first gate structure and the second gate structure, and a second inactive fin is between the second gate structure and the third gate structure. A bridge conductor layer is over the first, second, and third gate structures, and the first and second inactive fins. A dielectric plug extends from an upper surface of the second inactive fin, through the bridge conductor layer, to at least an upper surface of the bridge conductor layer.

SEMICONDUCTOR DEVICE
20230223440 · 2023-07-13 ·

The present application discloses a semiconductor device including a substrate; a first semiconductor stack having a first threshold voltage and comprising a first insulating stack positioned on the substrate; a second semiconductor stack having a second threshold voltage and comprising a second insulating stack positioned on the substrate; and wherein the first threshold voltage is different the second threshold voltage; a thickness of the first insulating stack is different from a thickness of the second insulating stack.

Gate structure and method

A device includes a substrate, a semiconductor channel over the substrate, and a gate structure over and laterally surrounding the semiconductor channel. The gate structure includes a first dielectric layer over the semiconductor channel, a first work function metal layer over the first dielectric layer, a first protection layer over the first work function metal layer, a second protection layer over the first protection layer, and a metal fill layer over the second protection layer.

FIN FIELD-EFFECT TRANSISTOR AND METHOD OF FORMING THE SAME

A method includes depositing a first work function layer over a first and second gate trench. The method includes depositing a second work function layer over the first work function layer. The method includes etching the second work function layer in the first gate trench while covering the second work function layer in the second gate trench, causing the first work function layer in the first gate trench to contain metal dopants that are left from the second work function layer etched in the first gate trench. The method includes forming a first active gate structure and second active gate structure, which include the first work function layer and the metal dopants left from the second work function layer in the first gate trench, and the first work function layer and no metal dopants left behind from the second work function layer, respectively.